Guide pin for a disc brake



FIG. 1 is a perspective view of a guide pin for a disc brake showing my new design;

FIG. 2 is a side elevation view of FIG. 1;

FIG. 3 is a rear end elevation view of FIG. 1;

FIG. 4 is a front end elevation view of FIG. 1; and,

FIG. 5 is a top view of FIG. 1. 

The ornamental design for a guide pin for a disc brake, as shown and described. 